A particle moves along a straight line such that its displacement at any time t is given by
s = t3 - 6t2 + 3t + 4 metres
The velocity when the acceleration is zero is
(a) 3 ms-1
(b) -12 ms-1
(c) 42 ms-2
(d) -9 ms-1
A particle moves along a straight line such that its displacement at any time t is given by
s = t3 - 6t2 + 3t + 4 metres
The velocity when the acceleration is zero is
(a) 3 ms-1
(b) -12 ms-1
(c) 42 ms-2
(d) -9 ms-1